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http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1190| Title: | Elliptic Flow of Charm and Strange Hadrons in High-Multiplicity p plus Pb Collisions at root(NN)-N-s=8.16 TeV |
| Authors: | CMS Collaboration Sirunyan, A. M. CHAUHAN, S. DUBE, SOURABH HEGDE, V KAPOOR, A. KOTHEKAR, K. PANDEY, S. RANE, A. SHARMA, SEEMA et al. Dept. of Physics |
| Keywords: | Relativistic nuclear collisions Range angular-correlations Long-range 2-Particle Correlations Root-S(NN)=5.02 TEV Collective flow Side PPB LHC EVENT 2018 |
| Issue Date: | Aug-2018 |
| Publisher: | American Physical Society |
| Citation: | Physical Review Letters. Vol. 121(8). |
| Abstract: | The elliptic azimuthal anisotropy coefficient (upsilon(2)) is measured for charm (D-0) and strange (K-S(0), Lambda, Xi(-), and Omega(-)) hadrons, using a data sample of p + Pb collisions collected by the CMS experiment, at a nucleonnucleon center-of- mass energy of root(NN)-N-s = 8.16 TeV. A significant positive upsilon(2) signal from long- range azimuthal correlations is observed for all particle species in high- multiplicity p + Pb collisions. The measurement represents the first observation of possible long-range collectivity for open heavy flavor hadrons in small systems. The results suggest that charm quarks have a smaller upsilon(2) than the lighter quarks, probably reflecting a weaker collective behavior. This effect is not seen in the larger PbPb collision system at root(NN)-N-s = 5.02 TeV, also presented. |
| URI: | http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1190 https://doi.org/10.1103/PhysRevLett.121.082301 |
| ISSN: | 1079-7114 |
| Appears in Collections: | JOURNAL ARTICLES |
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